Business Tax Services in NYC

Business taxes in New York City come in three layers, and the third one is where do-it-yourself filings break. Federal and state returns are familiar territory. The city is its own regime: it taxes corporate income at 8.85 percent under its General Corporation Tax, and it does not care that you elected S status federally.

Most owners find out about the city layer when a notice arrives years later, with interest already added. Projecting it in advance is the difference between a cost you planned for and one you did not.

Business tax filings we handle

Every return closes with next year’s estimated payment schedule across all three layers.

New York City taxes S corps and LLCs separately: GCT and UBT

Two city rules catch most owners.

New York City taxes S corporations as regular corporations. An S corp doing business in the city pays the full General Corporation Tax on allocated income, even though the IRS and the state both treat it as a pass-through.

Partnerships, LLCs and sole proprietors pay the Unincorporated Business Tax. It is an entity-level tax on city-allocated income, and it stacks on top of the personal income tax the owner already pays on the same earnings. A credit removes small UBT bills and phases out quickly, and city residents recover a slice on their personal returns, but for a profitable practice the UBT is real money every year.

Income earned outside the city does not belong in the city base, and documenting where the work was actually performed routinely shrinks both taxes. That documentation has to be built during the year. It cannot be reconstructed in an audit.

How we prepare a business return

1. Books to return. We start from a reconciled trial balance, tie book income to taxable income, and document the differences. Clean bookkeeping feeds all three layers at once; messy books get quoted a cleanup before anything is filed.
2. Elections and allocations. Before filing, we settle the decisions that exist only before filing: pass-through entity tax elections, city apportionment positions, officer compensation, and accounting method questions, including how carryforwards and deferred tax assets roll into the year.
3. Delivery across all three layers. You review one package: federal, state, and city returns together, K-1s for owners, and a quarterly schedule for the year ahead. Then we e-file the set and keep confirmations.

The pass-through entity tax election, state and city

New York’s pass-through entity tax lets an S corporation or partnership pay state tax at the entity level, with owners claiming a matching credit, which restores a federal deduction the SALT cap would otherwise limit. New York City runs a parallel city PTET for eligible entities. Both are annual elections with their own deadlines, and both interact with estimated payments, which is why we model the election with current numbers each year instead of rolling last year’s answer forward.

What our business clients say

Most of this work sits inside a relationship that runs for years, and it starts with one year prepared properly.

“We had over a hundred clients this last tax season that were in the wrong business structure. And on average, they overpaid anywhere between a few thousand to even tens of thousands of dollars in tax just because they did not have the right business structure for themselves.”

The error we correct most often: an owner elected S status for the federal payroll tax saving, and nobody priced the city side, where the election buys nothing and the General Corporation Tax still applies.

What business tax services cost

Pricing depends on the shape of the work.

• Entity type, and how many of the three layers apply.
• Owner count, and how many states are involved.
• The condition of the books, and whether back years need cleanup first.

A single-owner S corp with clean books and one city return is at the low end. A multi-state partnership with three open years is at the high end. The fee is fixed and in writing before work starts, and it moves only if the scope does, with your sign-off.

Signs your business filings need a second look

• The company operates in the five boroughs and has never filed a city return.
• You run a profitable freelance practice or LLC and nobody has ever mentioned the UBT.
• Your corporation elected S federally, but New York never received the separate Form CT-6 election, which leaves the state taxing you as a C corporation.
• The PTET election has never been modeled, or was made once and never revisited.
• Sales are crossing state lines and nobody has looked at nexus since the company was formed.

Any one of these is a twenty-minute review of the last return. We do that review in the first conversation and tell you plainly whether the prior work holds.

Related guides and services

• Who has to pay the NYC unincorporated business tax›
• How to avoid UBT in NYC›
• What is PTET›
• Corporate and partnership taxation›
• Individual taxation›

Put all three layers in one place

When the three layers are split across preparers, the gaps between them are yours to deal with. Under one roof, elections, allocations and estimates get decided once, consistently, by people seeing the whole picture. If a notice has already arrived, bring it. City notices in particular respond well to a fast, documented answer.

Have last year’s returns and a current profit and loss if you can. If the books are the problem, say so; that is a normal starting point here.

Reviewed by George Dimov, CPA, New York, NY. Serving clients in all 50 states, 15+ years advising on business taxation. President of George Dimov, CPA, a New York City firm serving clients across the five boroughs and nationwide.